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TPS544B28

ACTIVO

Convertidor reductor sincrónico PMBus® de 20 A, con entrada de 4 V a 16 V

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 16 Vin (min) (V) 4 Vout (max) (V) 5.5 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light load efficiency, PMBUS, Power good, Soft Start Adjustable, Synchronous Rectification, Telemetry Control mode D-CAP4 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 4 Duty cycle (max) (%) 90
Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 16 Vin (min) (V) 4 Vout (max) (V) 5.5 Vout (min) (V) 0.4 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light load efficiency, PMBUS, Power good, Soft Start Adjustable, Synchronous Rectification, Telemetry Control mode D-CAP4 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 4 Duty cycle (max) (%) 90
WQFN-HR (VAN) 19 9 mm² (3 mm × 3 mm) WQFN-HR (RBH) 19 10.5 mm² (3 mm × 3.5 mm)
  • 4V to 16V input voltage range without external bias
  • 2.7V to 16V input voltage range with external bias
  • 3.1V to 4.5V external VCC bias support
  • 8.5mΩ and 3.0mΩ MOSFETs (VVCC = 3.3V)
  • 20A continuous output current
  • PMBus 1.4 compliant
  • Optimized 19-pin WQFN-HR package for efficiency and thermal performance
  • 1% output voltage accuracy with internal feedback, TJ = –40°C to +150°C
  • 0.4V to 5.5V output voltage range
  • Differential remote sense
  • D-CAP4 with ultra-fast load-step response supports all ceramic output capacitors
  • User programmable NVM
  • Selectable auto-skip Eco-mode for high light-load efficiency
  • Programmable valley current limit
  • 500kHz, 600kHz, 800kHz, 1.0MHz, 1.2MHz, 1.4MHz selectable switching frequency
  • Programmable soft-start time
  • Prebiased start-up capability
  • Open-drain power-good output
  • Overvoltage and undervoltage fault protection
  • 3mm × 3mm (0.4mm pin pitch) and 3mm × 3.5mm (0.5 pin pitch) 19-pin QFN packages
  • Pin-to-pin compatible with 12A TPS544A28
  • 4V to 16V input voltage range without external bias
  • 2.7V to 16V input voltage range with external bias
  • 3.1V to 4.5V external VCC bias support
  • 8.5mΩ and 3.0mΩ MOSFETs (VVCC = 3.3V)
  • 20A continuous output current
  • PMBus 1.4 compliant
  • Optimized 19-pin WQFN-HR package for efficiency and thermal performance
  • 1% output voltage accuracy with internal feedback, TJ = –40°C to +150°C
  • 0.4V to 5.5V output voltage range
  • Differential remote sense
  • D-CAP4 with ultra-fast load-step response supports all ceramic output capacitors
  • User programmable NVM
  • Selectable auto-skip Eco-mode for high light-load efficiency
  • Programmable valley current limit
  • 500kHz, 600kHz, 800kHz, 1.0MHz, 1.2MHz, 1.4MHz selectable switching frequency
  • Programmable soft-start time
  • Prebiased start-up capability
  • Open-drain power-good output
  • Overvoltage and undervoltage fault protection
  • 3mm × 3mm (0.4mm pin pitch) and 3mm × 3.5mm (0.5 pin pitch) 19-pin QFN packages
  • Pin-to-pin compatible with 12A TPS544A28

The TPS544B28 device is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP4 control mode. The control method provides low minimum on-time and fast load-transient response across the entire output voltage range without requiring an external compensation network.

The TPS544B28 device has differential remote sense, high-performance integrated MOSFETs, ±7.5% current telemetry accuracy ≥10A, and supports ±0.5% output voltage accuracy with internal feedback, VOSL = 1 or 0.5, and TJ = 0°C to +85°C. The device features accurate load and line regulation and Eco-mode or Forced Continuous Conduction Mode (FCCM) operation.

The PMBus interface with 1MHz clock support gives a convenient, standardized digital interface for device configuration as well as output voltage, output current, and die temperature telemetry. Pinstrap options allow for the configuration of the overcurrent limit, fault response, internal or external feedback, output voltage selection, and switching frequency. Internal NVM is also available to store a variety of the PMBus parameters.

The TPS544B28 device is a lead-free device. The device is RoHS compliant without exemption.

The TPS544B28 device is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP4 control mode. The control method provides low minimum on-time and fast load-transient response across the entire output voltage range without requiring an external compensation network.

The TPS544B28 device has differential remote sense, high-performance integrated MOSFETs, ±7.5% current telemetry accuracy ≥10A, and supports ±0.5% output voltage accuracy with internal feedback, VOSL = 1 or 0.5, and TJ = 0°C to +85°C. The device features accurate load and line regulation and Eco-mode or Forced Continuous Conduction Mode (FCCM) operation.

The PMBus interface with 1MHz clock support gives a convenient, standardized digital interface for device configuration as well as output voltage, output current, and die temperature telemetry. Pinstrap options allow for the configuration of the overcurrent limit, fault response, internal or external feedback, output voltage selection, and switching frequency. Internal NVM is also available to store a variety of the PMBus parameters.

The TPS544B28 device is a lead-free device. The device is RoHS compliant without exemption.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS544B28 4V to 16V Input, 20A , Remote Sense Synchronous Buck Converter With PMBus® datasheet (Rev. A) PDF | HTML 12/06/2026
Application brief Powering FPGAs Supporting SmartVID using TI Switching Regulators and Modules With PMBus PDF | HTML 21/07/2026
Certificado TPS544B28EVM Declaration of Conformity (DoC) (Rev. A) 24/01/2025
Certificado TPS544B28RBHEVM EU Declaration of Conformity (DoC) (Rev. A) 24/01/2025

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS544B28EVM — Módulo de evaluación TPS544B28

El TPS544B28EVM está diseñado para proporcionar una configuración rápida para evaluar el TPS544B28 en un encapsulado VAN y familiarizarse con el dispositivo. El TPS544B28EVM está diseñado para un bus nominal de 12 V y produce una salida regulada de 1 V a una corriente de carga de hasta 20 A. El (...)

Guía del usuario: PDF | HTML
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Placa de evaluación

USB-TO-GPIO2 — Módulo de evaluación del adaptador de interfaz USB-TO-GPIO2

Este módulo de evaluación (EVM) sirve como adaptador de interfaz o puente entre un host PC y uno o múltiples dispositivos de destino a través de un cable USB estándar de tipo A a mini B. La comunicación entre el adaptador de interfaz USB y el host PC se realiza a través de USB, mientras que la (...)
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Software de aplicación y estructura

FUSION_DIGITAL_POWER_DESIGNER — Software de potencia digital

El software de interfaz gráfica de usuario (GUI) Fusion Digital Power™ se utiliza para configurar y supervisar determinados controladores digitales de alimentación y secuenciadores/monitores de estado de Texas Instruments. La aplicación utiliza el protocolo PMBus para comunicarse con el dispositivo (...)

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Modelo de simulación

TPS544A28 and TPS544B28 SIMPLIS Model

SLVMF16.ZIP (1082 KB) - Modelo SIMPLIS
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Herramienta de diseño

PMBUS-DESIGN-TOOL — Support PMBus Interface for Buck Converters and Modules

Digital Fusion support for PMBus converters and modules. USB-TO-GPIO2 adapter is needed.
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN-HR (VAN) 19 Ultra Librarian
WQFN-HR (RBH) 19 Ultra Librarian

Pedidos y calidad

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Soporte y capacitación

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